Pipe-joint.



A. J. COOK.

PlPE JOiNT.

APPLICATION FILED AUG.20. 1917.

1 .267 3 1 3 Patented May 21, 1918.

zgj.

Qmih woo mammal:

ADNERAM J. COOK, 0F WESTERLQ, NEW roan.

PIPE-JOINT.

To all whom it may concern:

Be it known that I, ADNIRAM J. Goon, a

citizen of the United States, residing at lVest-erlo, in the county ofAlbany and State of New York, have invented certa1n new and usefulImprovements in Pipe-Joints; and I do declare the following to be afull, clear, and exact description of the invention, such as will enableothers. skilled in the art to which it appertains to make and use thesame.

This invention relates to certain new and useful improvements inreinforced concrete conduits.

The primary object ofthe invention isto provide a reinforced concreteconduit, the sections of which are so constructed and fitted together asto effectively guard against leakage at the joint.

Another object of the invention is to pro vide a leak-proof pipe joint,the sections of which are similarly constructed so that any section maybe joined to any other section;

A further object of the invention is to provide a simple and improvedmeans for locking the adj acent sections of the conduit together.

A. still further object of the invention is to generally improve uponthe devices in this class by the provision of an extremely simple,strong, durable and comparatively inexpensive reinforcing and connectingelement which is thoroughly efiicient and reliable in operation, andwell adapted to the purpose for which it is designed.

With these and numerous other objects in view, the invention consists ofcertain novel features of construction, andthe combination of parts aswill be hereinafter fullydescribed and claimed.

In the accompanying drawings forming a part of the application, and inwhich similar reference characters are used to designate like partsthroughout the several views Figure 1 is a sectional perspective view ofone end of a conduit section constructed in accordance. with thisinvention Fig. 2 is a longitudinal sectional view through a portion ofmy improved conduit, and showing the manner in which the abuttingconduit sections are fitted and locked;

Fig. 3 is a detail perspective .view of portions of the adjacent endsof-the reinforcing and intermeshing cylinders ormembers,

Specification of Letters Eatent.

Patented May 21, 1918.

Application filed August 20, 191?. Serial No. 187,320.

illustrating more particularly the radially flanged extensions of saidcylinders; and

Fig. 4.- is a plan view of portions of the adjacent ends of thereinforcing cylinders illustrating the manner in which the continuousband is disposed between the radial flanges of the extensions of thesecylinders.

Referring more particularly to the drawings, the numerals 1 representtwo conduit sections, portions only-of which are shown. These conduitsections. 1 are molded or otherwise made of reinforced concrete, and oftubular or cylindrical shape. It is, however, to be understood that theymay be made in any other shape desired.

As more clearly shown in Fig. 2, two concrete conduit sections 1 arefitted together in axial alinement with one another, and each has one ofits inner terminals 1 contiguous to one of the inner terminals of theother of these sections. One end of each conduit section is formed withan annular and outwardly tapering rib 2, "adjacent to and extendingaxially beyond its inner terminal 1; an annular groove 3, the inner wallof which is extended to form the outer annular surface of the rib 2; andan outer terminal 1", the latter lying in a radial plane cutting theaxis of this conduit section at a point between the inner terminals 1 ofthis section. The other end of each conduit section is formed with anannular and outwardly tapering rib 2; an annular inwardly taperinggroove 3* disposed inwardly of the rib 2 andoutwardly of the terminals 1and an outer terminal 1 disposed outwardly of the rib 2 in a planecutting the axis of the conduit between its inner terminals 1*, theinner wall of the groove 3 being extended to form the outer annularsurface of the rib 2 Therefore, when the conduit sections are fittedtogether as shown in Fig. 2, the rib 2 fits in the groove 3*, the rib 2fits in the groove 3, the inner terminals 1 are contiguous to oneanother, and the outer terminals 1 and 1 are spaced from one another.The

structure thus far described is entirely of concrete or othercementitious substance.

The reference numeral 4 designates tubular reinforcing cylinders ortubular elements which may be made of any suitable material, and whichare preferably made of metal and provided with a great number ofapertures 5 therein. One of these elements 4 is embedded in each of theconcrete sections 1., Projecting from the ends of each element 4 andbeyond the termlnals 1 are spaced extensions 6, the free ends of whichare bent laterally and outwardly as shown to form radial flanges 7. Whenthe two conduits are fitted together, the hook shaped extensions of onesection are interlapped with those of the other sections, as clearlyshown by Figs. 3 and 4.

When this has been done, a wire band 8 is encircled around theextensions 6, being disposed between the radial flanges 7 of the twocylinders 4. The ends of the wire are twisted together in any suitablemanner, and when this is done it will be seen that the conduit sectionsare firmly locked together. g

The perforated or forammous cylindrical elements 4 are terminatedsubstantially at the outer terminals 1 and 1, but their extensions 6extend into the space between these outer terminals and at the innerends thereof, and these extensions 6 terminate in the radial flanges 7.

The space between the adjacent outer terminals 1 and 1 of the conduitsections 1s filled with a suitable filler 9 of mortar or other cementingmaterial. This may be applied in the plastic form before the conduit.

sections are brought together, or both before and after.

From the foregoing description taken in connection with the accompanyingdrawings, the construction, use and operation of the device will bereadily understood without a more extended explanation. It will be seenthat the objects of the invention have been effectively carried out asthe double lap conduit joint and means for securing the two pipesections together is such that leakage through the joint will beimpossible.

It is obvious that various minor changes in form, proportion, and in theminor details of construction may be resorted to without departing fromthe spirit of this invention, and hence it is to be understood that I donot wish to be limited to the construction herein shown and describedother than as claimed.

Claims:

1. A cylindrical conduit section formed at one end with an innerterminal, an outer terminal, an annular rib between the inner and outerterminals, and an annular groove between said rib and outer terminal,the said outer terminal being disposed in a radial plane cutting thecylinders axis between said inner terminal and the opposite end of theconduit section; said opposite end being formed with an inner terminal,an outer terminal disposed in a radial plane cutting the axis betweensaid inner terminals, an annular rib between the inner and outerterminals 7 minals such a rib asthe one at the remote end of theconduit, and means extending beyond each outer terminal for cooperatingwith a similar means on a similar conduit section for securing thesesections together while one of the annular flanges of eachconduitsection is seated in-- one of the annular grooves of the adjoiningconduit section.

2. A cylindrical conduit section formed at one end with an innerterminal, an outer terminal, an annular rib between the inner and outerterminals, and an annular groove between said rib and outer terminal,the said outer terminal bein disposed in a radial plane cutting thecylmders axis between said inner terminal and the opposite end of theconduit section; said opposite end being formed with an inner terminal,an outer terminal disposed in a radial plane cutting the axis betweensaid inner terminals, an annular. rib between the inner and outerterminals of this end of the cylinder, and an annular groove between thelast said annular rib and the inner terminal at conduit section, saidannular ribs being ta pered toward their outer or free ends, saidgrooves being tapered inwardly and each adapted to receive one of suchoutwardly tapered ribs of a similar conduit section, and means extendingfrom said outer terof each conduit section for cooper ating with asimilar means of said similar conduit section for holding one of theribs of each section in one of the saidfgrooves of said similar section.3

3. In a reinforcing and fastening element for a concrete conduitsection, a foraminous hollow cylinder formed with spaced and axiallyparallel extensions at its ends, each of said extensions being formedwith and terminating in a radially extending flange, the spaces betweenthe said extensionsbeing only sufliciently wide to receive an-extensionof a similar reinforcing and fastening element, for thepurpose'specified.

4. In a reinforced conduit section, a foraminous reinforcing andfastening element of 'hollow' cylindrical form and having axiallyparallel extlensions spaced from one another sufliciently to receivetherebetween the similar extensions of a similar reinforcing andfastening .element, the free end of each of said extensions terminatingin a radial flange, a cementitious cylindrical body enveloping theforaminous part of said reinforcing and fastening element and extendingthrough the foramina thereof and terminating substantially at the basesofsaid extensions, one end of said cementitious body being formed withan annular rib, the other 13 end of said cementitious body being formedwith an annular groove adapted to receive an annular rib of a similarbody and to fit snugly therein While the adjacent outer ter 5 minals ofthese bodies are spaced from one another and receive therebetween theradial flanges of the interlapped extensions of two of the saidreinforcing and fastening elements, and an annular fastening element 00-operating with the said radial-flanges for securing the conduit sectionstogether.

In testimony whereof I have ereunto set my hand.

ADNIRAM J. COOK

